22226976637 has 2 divisors, whose sum is σ = 22226976638. Its totient is φ = 22226976636.

The previous prime is 22226976631. The next prime is 22226976677. The reversal of 22226976637 is 73667962222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17904045636 + 4322931001 = 133806^2 + 65749^2 .

It is a cyclic number.

It is not a de Polignac number, because 22226976637 - 2³¹ = 20079492989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22226976631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11113488318 + 11113488319.

It is an arithmetic number, because the mean of its divisors is an integer number (11113488319).

Almost surely, 2^22226976637 is an apocalyptic number.

It is an amenable number.

22226976637 is a deficient number, since it is larger than the sum of its proper divisors (1).

22226976637 is an equidigital number, since it uses as much as digits as its factorization.

22226976637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 52.

The spelling of 22226976637 in words is "twenty-two billion, two hundred twenty-six million, nine hundred seventy-six thousand, six hundred thirty-seven".